Running different models-considering uncertaintis

[ehsanomranimemphis]

Hi All.
Is there someone to guide me how I can run different models with random values for material properties and other attributes using matlab? Can it be done by opensees?

[ismailqeshta]

You probably need to use "for" loop. If you are using Matlab, you may come up with your initial code and refine it through some help from Matlab forums.

[ehsanomranimemphis]

ismailqeshta wrote:
> You probably need to use "for" loop. If you are using Matlab, you
> may come up with your initial code and refine it through some help from
> Matlab forums.
Thanks for reply. Actually I need to change steel (rebar) and concrete strength properties in each analysis. How I can use "for" loop in Opensees?

[ismailqeshta]

You need to use "list" command for each one (steel strength and concrete strength).
set m1 [list 1 2 3]
set m2 [list 4 5 6]

Then, run the "for" loop:
for {set i 0} {$i < 3} {incr i} {
I used here 3 as the number of variables. You can change it.

[ehsanomranimemphis]

ismailqeshta wrote:
> You need to use "list" command for each one (steel strength and
> concrete strength).
> set m1 [list 1 2 3]
> set m2 [list 4 5 6]
>
> Then, run the "for" loop:
> for {set i 0} {$i < 3} {incr i} {
> I used here 3 as the number of variables. You can change it.
Thank you. It works. Also there is another way to do it. I used "foreach" command and compare the results with list. They are exactly the same. So we can both "list" or "foreach"